[FIXED] How can I use pyqt4 with current python and spyder version?

Issue

for some python programming I do for work I'd like to use pyqt4. I also use Anaconda and the Spyder IDE.

To downgrade pyqt from 5 to 4 I created a new environment within Anaconda. The problem is that everytime I install Spyder in this environment the pyqt version is being upgraded to 5 again.

Is there any way to get around this?

Solution

(Spyder maintainer here) You need to create your environment (called spy-pyqt4 in this case) with the following command

conda create -n spy-pyqt4 spyder=3.2.8 pyqt=4

Spyder 3.2.8 was our last version to support PyQt4.

Answered By - Carlos Cordoba